diff --git a/lib/elasticsearch-serverless/api/security/update_api_key.rb b/lib/elasticsearch-serverless/api/security/update_api_key.rb
new file mode 100644
index 0000000..7e2b8d2
--- /dev/null
+++ b/lib/elasticsearch-serverless/api/security/update_api_key.rb
@@ -0,0 +1,75 @@
+# Licensed to Elasticsearch B.V. under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Elasticsearch B.V. licenses this file to you under
+# the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# Auto generated from commit f284cc16f4d4b4289bc679aa1529bb504190fe80
+# @see https://github.com/elastic/elasticsearch-specification
+#
+module ElasticsearchServerless
+  module API
+    module Security
+      module Actions
+        # Update an API key.
+        # Updates attributes of an existing API key.
+        # Users can only update API keys that they created or that were granted to them.
+        # Use this API to update API keys created by the create API Key or grant API Key APIs.
+        # If you need to apply the same update to many API keys, you can use bulk update API Keys to reduce overhead.
+        # It’s not possible to update expired API keys, or API keys that have been invalidated by invalidate API Key.
+        # This API supports updates to an API key’s access scope and metadata.
+        # The access scope of an API key is derived from the +role_descriptors+ you specify in the request, and a snapshot of the owner user’s permissions at the time of the request.
+        # The snapshot of the owner’s permissions is updated automatically on every call.
+        # If you don’t specify +role_descriptors+ in the request, a call to this API might still change the API key’s access scope.
+        # This change can occur if the owner user’s permissions have changed since the API key was created or last modified.
+        # To update another user’s API key, use the +run_as+ feature to submit a request on behalf of another user.
+        # IMPORTANT: It’s not possible to use an API key as the authentication credential for this API.
+        # To update an API key, the owner user’s credentials are required.
+        #
+        # @option arguments [String] :id The ID of the API key to update. (*Required*)
+        # @option arguments [Hash] :headers Custom HTTP headers
+        # @option arguments [Hash] :body request body
+        #
+        # @see https://www.elastic.co/guide/en/elasticsearch/reference/current/security-api-update-api-key.html
+        #
+        def update_api_key(arguments = {})
+          request_opts = { endpoint: arguments[:endpoint] || "security.update_api_key" }
+
+          defined_params = [:id].inject({}) do |set_variables, variable|
+            set_variables[variable] = arguments[variable] if arguments.key?(variable)
+            set_variables
+          end
+          request_opts[:defined_params] = defined_params unless defined_params.empty?
+
+          raise ArgumentError, "Required argument 'id' missing" unless arguments[:id]
+
+          arguments = arguments.clone
+          headers = arguments.delete(:headers) || {}
+
+          body = arguments.delete(:body)
+
+          _id = arguments.delete(:id)
+
+          method = ElasticsearchServerless::API::HTTP_PUT
+          path   = "_security/api_key/#{Utils.listify(_id)}"
+          params = {}
+
+          ElasticsearchServerless::API::Response.new(
+            perform_request(method, path, params, body, headers, request_opts)
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/lib/elasticsearch-serverless/version.rb b/lib/elasticsearch-serverless/version.rb
index 646e77d..819868e 100644
--- a/lib/elasticsearch-serverless/version.rb
+++ b/lib/elasticsearch-serverless/version.rb
@@ -17,6 +17,6 @@
 
 module ElasticsearchServerless
   API_VERSION = '2023-10-31'.freeze
-  CLIENT_VERSION = '0.5.0'.freeze
+  CLIENT_VERSION = '0.6.0'.freeze
   VERSION = CLIENT_VERSION
 end